[3.13] gh-128770: raise warnings as errors in test suite - except for test_socket which still logs warnings, and internal test warnings that are now logged (#131802)

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
(cherry picked from commit 8a00c9a4d2)

Lib/test/test_int.py

@@ -4,8 +4,10 @@ import time
 import unittest
 from unittest import mock
 from test import support
-from test.test_grammar import (VALID_UNDERSCORE_LITERALS,
-                               INVALID_UNDERSCORE_LITERALS)
+from test.support.numbers import (
+    VALID_UNDERSCORE_LITERALS,
+    INVALID_UNDERSCORE_LITERALS,
+)
 
 try:
     import _pylong